Index: leahi_dialin/td/modules/blood_flow.py
===================================================================
diff -u -rad4c49079480b9c808d49adef86ac68f313fa364 -r820c94585ab5d85c40395e828c4dfe2da164c105
--- leahi_dialin/td/modules/blood_flow.py	(.../blood_flow.py)	(revision ad4c49079480b9c808d49adef86ac68f313fa364)
+++ leahi_dialin/td/modules/blood_flow.py	(.../blood_flow.py)	(revision 820c94585ab5d85c40395e828c4dfe2da164c105)
@@ -16,6 +16,7 @@
 
 # Module imports
 from logging import Logger
+import time
 
 # Project imports
 from leahi_dialin.common.constants import NO_RESET, PUMP_CONTROL_MODE_CLOSED_LOOP
@@ -62,6 +63,7 @@
             td_enum_repository.TDBloodFlowMotorAttributes.ROTOR_HALL_STATE.name: 0,
         }
 
+        self.handler_execution_times = []
 
 
     @publish(["msg_id_td_blood_pump_data", "h4_motor", "td_blood_flow_timestamp"])
@@ -73,6 +75,7 @@
         @param message:  published blood flow data message
         @return: none
         """
+        start = time.perf_counter()
         sensor_list =[]
         sensor_list.append((td_enum_repository.TDBloodFlowMotorAttributes.SET_BLOOD_FLOW_RATE.name,             DataTypes.S32))
         sensor_list.append((td_enum_repository.TDBloodFlowMotorAttributes.MEASURED_BLOOD_FLOW_RATE.name,        DataTypes.F32))
@@ -88,6 +91,7 @@
                                decoder_list = sensor_list,
                                message = message)
         self.td_blood_flow_timestamp = timestamp
+        self.handler_execution_times.append(time.perf_counter() - start)
 
 
     def cmd_blood_flow_broadcast_interval_override(self, ms: int, reset: int = NO_RESET) -> int: